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Who is known as the father of modern chemistry and redefined elements as pure substances?
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Who is credited with discovering hydrogen, which he termed 'inflammable air'?
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Who is often hailed as the father of modern chemistry and introduced the law of conservation of mass?
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What theory did John Dalton propose based on empirical evidence?
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Who created the periodic table, organizing elements by increasing atomic weight and properties?
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What observation did John Newlands make regarding the repetition of properties every eight elements?
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Who developed the quantum model of the atom, explaining atomic structure and spectra?
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